Finding the Fourth Proportional to 5,218,474.20, 7,201,546.56 and 2,926,585.68
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Solution
The fourth proportional to 5,218,474.20, 7,201,546.56 and 2,926,585.68 is: 4,038,717.49
Step by Step Solution
- Step 1: Write the proportion equation
5,218,474.20 : 7,201,546.56 = 2,926,585.68 : x - Step 2: Convert to fraction form
5,218,474.20/7,201,546.56 = 2,926,585.68/x - Step 3: Cross multiply
5,218,474.20x = 7,201,546.56 × 2,926,585.68 - Step 4: Simplify right side
5,218,474.20x = 21,075,943,036,349.26 - Step 5: Solve for x
x = 21,075,943,036,349.26/5,218,474.20 - Step 6: Final answer
x = 4,038,717.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.